Published: Jan 07, 2018 Tags: security Category: Engineering Cryptography is the core part of security, this blog introduces the basic concepts in cryptography and uses .NET as code example. Randomness System.Random and its problems System.Random is a pseudo random number generator A seed value is passed into the …

Published: Jan 4, 2018 Tags: docker Category: Engineering Docker is the world's leading software containerization platform. Docker/container technology becomes more and more popular these days. This blog introduces the basic concept of the above technology. What is docker In the old days, physical machine is the basic …

Published: Dec 29, 2017 Tags: booknotes Category: Management This is the notes from book by Peter Drucker. According to Drucker, the task of leadership is to create an alignment of strengths, making our weakness irrelevant 有效企业管理 企业的管理必须有效，否则企业无法生存。 管理得好的工厂，一般单调乏味，没有任何激动人心的事件发生。 那些“心中无数决心大”的誓师大会表面是轰轰烈烈，但从本质上看对提高管理的有效性却 …

Published: Sep 04, 2017 Tags: cloud Category: Engineering This is a blog to explain what cloud is to dummies. Introduction Five main principles of cloud computing: Pooled resources: Available to any subscribing users Virtualization: High utilization of hardware assets Elasticity: Dynamic scale without CAPEX Automation: …

Published: Sep 9, 2017 Tags: web, frontend Category: Engineering Javascript is the fundumantal programming language for frontend development. This blog introduces the basic concept of Javascript language. Javascript Basic First, let's compare Javascript with a OOP programming language C#. C# Javascript Strongly-Typed …

Published: Sep 06, 2017 Tags: blockchain, security Category: Engineering Blockchain is the technology behind Bitcoin, this blog introduce what the Blockchain is. What is Blockchain Blockchain is a distributed ledger system which makes the transactions transparent and anonymous. By doing this, Blockchain brings a secure …

Published: Sep 03, 2017 Tags: booknotes Category: Management The book notes of . 开会与交流 所有会议都应该有一个明确的议程（或列出一张供讨论的问题清单），并做出具体的决定和新的行动方案。 通过频繁的电子邮件交流使团队成员了解项目的最新进程，不过格式要简单统一。请记住，过度交流肯定会好于交流不足 观点遭到小组的反对，我们可能会变得冲动并进行激烈的争辩以使他人接受自己的观点。不过，最好的办法是说出自己的观点，把问题本身和提出问题的人相分离，然后从正反两面对观点展开讨论，重点关注积极的方面。 在评估问题和意见的正反两面时，一定要把人与他所提出的见解分开。在评 …

Published: Sep 01, 2017 Tags: booknotes, process, devops, continuousdelivery Category: Engineering DevOps and continuous delivery are two hot topics these days, which play more and more important role in software development especially for the SaaS (Software as a Service) solution. DevOps DevOps is a software …

Published: Aug 31, 2017 Tags: booknotes Category: Life The original version was written in French named <L'art de la simplicite> by Dominique Loreau. This book show the tips regarding to have a simplified but high quality life. 简单 简单，就是拥有极少，把空间留给必需和精华。 简单，让生活摆脱使人精力分散、紧张不安的偏见、拘束和压力，为我们提供很多问题的解决方法。 不要再拥有过多的到东西，你将省出更多时间来关 …

Published: Aug 27, 2017 Tags: booknotes, architecture Category: Engineering Xunit Test Pattern is a fantastic book which shares the experience and good practice to write tests. Test Introduction Easy to run tests What makes tests easy to run? Four specific goals answer this question: They must be Fully Automated Tests …